Structural Property Relationships in Biological Molecules

condensation polymers made from amino acids

a carbon atom bonded to a hydrogen atom, an amine group, a carboxylic acid group, and an R group (side chain)

formed via condensation reactions, links together amino acids, planar

molecular chain of alpha carbon atoms connected by amide groups

attached to, but branch off from, main chain

non polar, repelled from water

highly polar bonds, have strong H bonding capability

the sequence in which the amino acids are linked, most important aspect

the pattern of hydrogen bonds between non adjacent backbone amide groups

regular pattern of hydrogen bonding between backbone amides

stretches of the protein chain connected side by side by hydrogen bonds between backbone amide groups

overall 3D shape of the protein (often guided by R groups)

When 2 or more strands of proteins are held together by IMFs

two polymer strands that coil around each other, forming a double helix

monomers of DNA, a phosphate group and a nucleobase attached to a sugar

Adenine, Thymine, Guanine, Cytosine

pairs of nucleobases; always equal in amounts and they maximize the number of H bonds

composed of glycerol and fatty acids

long, unbranched hydrocarbon chains with a carboxylic acid at one end

glycerolipids with higher melting point and are solids at room temp

glycerolipids with lower melting point and are liquids at room temp